>>catherine: the children of sandy hook elementary are 'not' back in class yet. and probably won't be until after christmas. moving trucks continue to empty out their building.moving equipment to a vacant middle school where they'll go back to class.meantime.the sad string of funerals continued. 6-year-old jessica rekos is one of the 20 children gunned down friday morning. her funeral service began only minutes after another one - for classmate james mattioli - had wrapped up. while investigators promise answers in what happened. many wonder if it will ever really be clear why 20-year- old adam lanza did this. the fbi is trying to recover information from his hard drive.but one agent said 'the kid knew what he was doing' - referencing the fact adam apparently deliberately destroyed his hard drive to erase valuable evidence. a home search turned up no mental health medication. and authorities say lanza left no note or letter. no explanation for why he targeted innocent children. the one person who might have offered some answers - adams mother nancy. another of hi